Recommended practice for planning designing and construcing heliports for fixed offshore platforms .

本标准适用于海上固定平台直升机场的规划、设计和建造。

Recommended method for planning , designing and constructing heliports for fixed offshore platforms .

海上固定平台直升机场规划、设计和建造的推荐作法。

Recommended practice for planning , designing , and constructing heliports for fixed offshore platforms .

海上固定平台直升机场规划,设计和建造的推荐作法。